{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-116781 in the wild and no public exploit code.","exposure":"","fix":"No fix has been published for CVE-2026-116781 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-116781 is a medium-severity vulnerability in signalwire freeswitch, published on 5 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-116781 and fix it if it is affected.\n\nWhat it is: CVE-2026-116781 is a medium-severity vulnerability in signalwire freeswitch, published on 5 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-116781 in the wild and no public exploit code.\n\nAffected product: signalwire freeswitch. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-116781/ (Markdown: https://insights.sbomify.com/CVE-2026-116781/index.md)","id":"CVE-2026-116781","markdown":"https://insights.sbomify.com/CVE-2026-116781/index.md","name":"CVE-2026-116781","record":{"aliases":["GHSA-4cg6-rvh2-cw74"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[{"name":"Freeswitch","product":"freeswitch","vendor":"freeswitch"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-193","name":"Off-by-one Error"}],"description":"FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to 1.11.2, ws_read_frame() unmasked a WebSocket payload by iterating wsh-\u003edatalen, which included frame headers, while indexing from the payload pointer. A masked frame filling the 64 KiB receive buffer could therefore XOR up to 14 bytes beyond the buffer, and the exact-capacity case also wrote a terminating NUL one byte out of bounds. The flaw is reachable before authentication when mod_xml_rpc and its opt-in WebSocket endpoint are enabled, while both features are disabled in the stock configuration. The writes remain within the same connection handle's adjacent outbound buffer, so neither a process crash nor cross-session disclosure has been demonstrated. This issue is fixed in version 1.11.2.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"FreeSWITCH: Pre-authentication out-of-bounds writes in mod_xml_rpc WebSocket frame parsing","id":"CVE-2026-116781","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"FreeSWITCH: Pre-authentication invalid pointer dereference in mod_rtmp connect command handling","id":"CVE-2026-116782"},"nickname":null,"packages":[],"prev":{"headline":"FreeSWITCH: Heap out-of-bounds read in FreeSWITCH core variable expansion via `${variable:offset}` slicing","id":"CVE-2026-116780"},"products":["freeswitch"],"published":"2026-11-05","related":[{"cvss_score":9.8,"headline":"SignalWire FreeSwitch Code Injection","id":"CVE-2026-116779","kev_date_added":"2026-11-09","published":"2026-11-05"},{"cvss_score":9.8,"headline":"FreeSWITCH: Pre-authentication heap buffer overflow in `mod_verto` HTTP POST body read","id":"CVE-2026-49841","kev_date_added":null,"published":"2026-06-09"},{"cvss_score":9.8,"headline":"FreeSWITCH 1.6.10 through 1.10.1 has a default password in event_socket.conf.xml.","id":"CVE-2019-19492","kev_date_added":null,"published":"2019-12-02"},{"cvss_score":9.1,"headline":"FreeSWITCH: Pre-authentication heap out-of-bounds write in mod_xml_rpc WebSocket frame length handling","id":"CVE-2026-116785","kev_date_added":null,"published":"2026-11-05"},{"cvss_score":9.1,"headline":"FreeSWITCH: Inbound ICE connectivity checks are accepted without verifying STUN MESSAGE-INTEGRITY","id":"CVE-2026-116790","kev_date_added":null,"published":"2026-11-05"},{"cvss_score":9.1,"headline":"FreeSWITCH: Pre-authentication heap buffer overflow in libesl `Content-Length` parsing","id":"CVE-2026-49840","kev_date_added":null,"published":"2026-06-09"},{"cvss_score":8.8,"headline":"FreeSWITCH: Channel-variable injection via SIP REFER leads to command execution in mod_sofia","id":"CVE-2026-116786","kev_date_added":null,"published":"2026-11-05"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-11-09","vendors":["signalwire"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-116781/"}